LITTLE ROCK (AP) — Arkansas’ U.S. senators split Thursday on legislation offering 11 million immigrants living in the country unlawfully the chance at citizenship.

Democratic Sen. Mark Pryor voted for the historic immigration bill, while Republican Sen. John Boozman voted against it. The Senate approved the measure on a 68-32 vote.

Pryor praised the bipartisan nature of the vote for the bill, which he called the “strongest border security bill in history.”

“Those who have been in the shadows for decades will be taking responsibility for their actions by paying owed taxes, fines and penalties; contributing to Social Security; helping reduce our deficit; and strengthening our economy,” Pryor said in a statement released by his office.

The legislation offers a path to citizenship for millions in the country illegally and promises a military-style surge to secure the border. The measure requires 20,000 new Border Patrol agents, the completion of 700 miles of fencing and deployment of an array of high-tech devices along the U.S.-Mexico border.

Those living in the country illegally could gain legal status while the border security plan was being implemented, but would not be granted permanent resident green cards or citizenship.

Boozman, however, said he didn’t believe the measure provided the resources needed for border security enforcement.

“There is no disputing that we need to address our nation’s porous borders, backlogged immigration system and lax enforcement of hiring practices,” Boozman said in a statement. “Unfortunately, the Senate’s legalize now, enforce later approach is the wrong way to reform our broken system.”